Mayo vs Mayonnaise

When to use each in English, with meaning, register, and examples.

Mayo

Top 3,000 (common)

Mayonnaise

Top 3,000 (common)
 MayoMayonnaise
Pronunciation🇬🇧 //ˈmeɪəʊ//🇺🇸 //ˈmeɪoʊ//🇬🇧 //meɪəˈneɪz//🇺🇸 //meɪəˈneɪz//
MeaningA creamy sauce made from oil, egg yolks, and vinegar or lemon juice.A thick sauce made from oil and egg yolks.
ExampleI like to add mayo to my sandwiches.I love adding mayonnaise to my sandwiches.
RegisterNeutralNeutral
How commonTop 3,000 (common)Top 3,000 (common)
Collocationsadd mayo, mayo dressing, mayo dipadd mayonnaise, mayonnaise dressing, mayonnaise jar, homemade mayonnaise, mayonnaise sandwich
Common mistakesConfused with 'mayonnaise' - 'mayo' is informal., Adding 'the' before 'mayo' when it's uncountable., Mispronouncing as 'may-o' instead of 'may-oh'.Sometimes confused with other condiments like aioli or ranch dressing., Spelling mistakes, such as 'mayonaisse'.
Usage notesUsed in casual and formal contexts. Often seen in cooking and dining settings, but may not be appropriate for very formal writing.Commonly used in sandwiches and salads. Often considered casual food, but can be found in gourmet dishes too.

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Mayo
Mayonnaise

Frequently asked questions: Mayo vs Mayonnaise

What's the difference between Mayo and Mayonnaise?

Mayo: A creamy sauce made from oil, egg yolks, and vinegar or lemon juice. Mayonnaise: A thick sauce made from oil and egg yolks.

Can you show an example of each?

Mayo: I like to add mayo to my sandwiches. Mayonnaise: I love adding mayonnaise to my sandwiches.

Can I use Mayo and Mayonnaise interchangeably?

Not always. Mayo and Mayonnaise are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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